IFRQuickReviewSheets

8/6/2019 IFRQuickReviewSheets

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Airplane IFR quick-review study sheets | page 1 | visit pilotscafe.com for more cool stuff V1.4 copyright 2011

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Min. aeronautical experience required for an airplane instrument rating:50 hours x-country PIC time. Of which, 10 hours in airplanes.40 hours actual or simulated instrument time Of which 15 hours with CFII

Including one x-country flight of:x 250 NMx Along airways or by directed ATC routingx An inst. App. At each airportx 3 different kinds of approaches using nav. systemsx With a filed IFR flight plan

3 hours in last 2 cal. Months prior to the practical test( 61.65)

Instrument PIC recency of experience:Last 6 calendar months (under actual/simulatedinstrument or Flight Training Device/simulator, in thesame aircraft category), logged: (6 HITS)

6 instrument approaches.H olding procedures & tasks.Intercept & T rack courses through the use of electronic navigation Systems.

Or , using an ATD (basically an approved PC-basedflight simulator + hardware) in the last 2 calendar months prior to the flight:

3 hours instrument experience.Holding procedures & tasks.6 instrument approaches.2 unusual attitude recoveries in a descending Vnecondition.2 unusual attitude recoveries in an ascending stallspeed condition.

Not current looking back 6 months? You can still logthe requirements (6 HITS) and get current with a safety

pilot (under simulated conditions), instructor or pilotexaminer.The safety pilot must be at least a private pilot with theappropriate category and class. He must have adequatevision forward and to each side of the aircraft. Whenusing a safety pilot, the aircraft must have dual-controlsystem.Looking back 12 cal. months not current? You need anInstrument Proficiency Check (IPC) by a CFII,examiner or approved person.Certain IPC tasks, found in a table at the end of theinstrument PTS, can be completed in an approved flightsimulator or FTD. However, a full IPC can only beconducted in certain full-motion simulators or in theactual aircraft, since some tasks (such as circlingmaneuvers) cannot be completed on low-end FTDs andsimulators.To carry passengers as PIC

3 takeoffs and landings in last 90 days in the same

category, class and type (if type rating required).At periods between 1 hour after sunset to 1 hour before sunrise: 3 takeoffs and landings to a fullstop during 1 hour after sunset to 1 hour beforesunrise in the last 90 days.

To act as PIC flight review in the last 24 cal. Months(see FAR for exceptions)

(61.56, 91.109, 61.57)

Logging instrument time - A person may log instrument time only for that flight time when the person operates the aircraft solely by reference to instruments under actual or simulated instrument flight conditions.

Personal documents required for flight:Pilot certificateMedical certificateAuthorized photo ID (passport, drivers license, etc) Restricted radiotelephone operator license (for flights outside the U.S.)

(61.3 and FCC)

Aircraft documents required for flight :A.R.R.O.W-

A- Airworthiness certificateR -Registration certificateR -Radio station license (for international flights)O -Operating limitations & AFMW -Weight & Balance data

(21.5, 91.103, 91.9, 91.203, FCC form 605)

Aircraft maintenance inspections required for IFR :A.V.I.A.T.E-

A-Annual inspection every 12 cal. Months (91.409)V-VOR every 30 days (91.171)I-100 hour inspection (91.409)A-Altimeter, altitude reporting and static system every 24 cal. months (91.413)T -Transponder every 24 months (91.413)

E -ELT every 12 months (91.207)

Preflight info required for IFR : (91.103)W.K.R.A.F.T-

W- W eather reports and forecasts.K- K nown traffic delays as advised by ATC.R- R unway length of intended use.A- A lternatives available if flight cannot be completed as planned.F- F uel requirementsT- T akeoff and landing performance data.

Preflight self-assessment :I.M S.A.F.E-

I- I llnessM - M edicationS- StressA- A lcohol (8 hours bottle to throttle; no more than .04% of alco hol in blood)F- F atigueE- E motion

Risk management & personal minimums P.A.V.E-

P- P ilot (general health, physical / mental / emotional state, proficiency, currency)A- A ircraft (airworthiness, equipment, performance)V- EnV ironment (weather hazards, terrain, airports / runways to be used & other conditions)E- E xternal pressure (meetings, people waiting at destination, etc.)

Airplane IFR quick-review sheets


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IFR flight plan

Required before entering controlled airspace under IFR (a clearance is also required)(91.173)How to file?o FSS (in person, radio or phone)o DUATS (online)o Through radio/phone with ATCo File at least 30 min. prior to est. departure

timeStored in the system for 1.5 hours from

proposed time of departure.Cancelation (AIM 5-1-14)o Towered airports automatically canceled

by ATC upon landing.o Non-towered airports you must contact

ATC/FSS to cancel.o Can cancel anytime not in IMC and outside

class A airspace.Preferred IFR routes are published in theAirport/Facility Directory (AFD). If a

preferred route is published to your destination, you should file it in your flight plan.

0-179 Odd

thousnadsor FlightLevels

180 -359 Even

thousnadsor FlightLevels

IFR cruising altitudes (Based on Magnetic Course)

(91.179)

IFR minimum altitudes

Minimum prescribed , or if none:

Mountainous areas : 2,000ft abovehighest obstacle within 4NM of course.

Non-mountainous areas : 1,000ft

above highest obstacle within 4NMof course. (91.177)

IFR minimum fuel requirements (91.167)

Fuel fromdepartureairport to

destination

Fuel from destinationto alternate (if

required)

:45 Minutes of fuel

at normal cruise

18

th

adsht

n Magnetic C

Do you need an alternate?("1-2-3" or "1-2003" rule) 91.169

If within 1 hour before to 1 hour after ETA forecastedweather is less then:2000 ft ceiling and/or3 SM visibilityyou need an alternate!

Yes. minimum weather conditions required at anairport to list it as an alternate : The alternate airport minima specified in the procedures , or, if none:

Precision approach :600 ft ceiling and 2 SM visibility

Non-precision approach : (must be other than non-WAAS GPS)800 ft ceiling and 2 SM visibility

No instrument approach at the alternate :ceiling & visibility allowing descent f rom MEA, approach and landingunder basic VFR.

Obstacle Departure Procedures (ODP) (AIM 5-2-8) Only provides obstruction clearance.May be flown without an ATC clearance unless a SID or other instructions are assigned. (e.g. radar vectors)Graphic ODP denote Obstacle in the chart title. All new RNAV ODPs are available in graphical form.Found in the front of NACO chart booklets, arrangedalphabetically by city name.Jeppesen charts show ODPs under the airport diagram(x0-9) page, or, at larger airports, on a separate chart.

Standard Instrument Departures (SID) (AIM 5-2-8) Provide obstruction clearance and helps reducing radiocongestion and workload by simplifying ATC clearances.Pilot NAV SIDs Pilot navigates by charted routes withminimal radio instructions.Vector SIDs Navigation is based on radar vectors. Routes arenot printed on the chart.Some SIDs depict non-standard radio failure procedures.File NO SIDs in the remarks of your flight plan if you choosenot to use them.RNAV SIDs and all graphical RNAV ODPs require RNAV 1

performance. (1 NM for 95% of the total f light time).Standard Terminal Arrivals (STAR) (AIM 5-4-1)

Serves as a transition from the en route structure to a point fromwhich an approach can begin.Transitions routes connect en route fixes to the basic STAR

procedure.Usually named according to the fix at which the basic procedure

begins.As with SIDs, you may state No STARs in your flight plan

remark section if you choose not to use them.RNAV STARS require RNAV 1 performance.


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al app. Fix/point

Holding pattern timingAdjust the outbound leg so the inbound leg takes:

o At or below 14,000 MSL 1 minuteo Above 14,000 MSL 1.5 minutesDME/GPS holds fly the outbound leg to thespecified distance from the fix/waypoint.

Max holding speeds

Up to 6000 MSL 200 KIAS6001 -14,000 MSL 230 KIASAbove 14,000 MSL 265 KIASMay be restricted to 175 KIAS on some inst.approach procedures.At Airforce fields 310 KIAS*At Navy fields 230 KIAS*

*Unless otherwise depicted.(AIM 5-3-7)

Basic IFR departure clearance itemsC.R.A.F.T -

C -Clearance LimitR -RouteA-AltitudeF -Frequency (for departure)T -Transponder code

Clearance void time The time at which your clearance is void and after which you may not takeoff. You must notify ATC within 30 min after thevoid time if you did not depart.Hold for release You may not takeoff until being released for IFR departure.Release time The earliest time the aircraft may depart under IFR.Expect Departure Clearance Time (EDCT) A runway release timegiven under traffic management programs in busy airports. Aircraft areexpected to depart no earlier and no later than 5 minutes from the EDCT. Abbreviated departure clearance = Cleared () as filed ()

(AIM 4-4-3, 5-2-5, 5-2-6)

Mandatory reports under IFRM.A.R.V.E.L.O.U.S. V.F.R. C.500 -

M -M issed approach (AIM 5-3-3)A-A irspeed 10kt / 5% change of filed TAS (AIM 5-3-3) R -R eaching a holding fix (report time & altitude) (AIM5-3-3) V-VFR on top (AIM 5-3-3) E* -E TA change 3 min (AIM 5-3-3) L -L eaving a holding fix/point (AIM 5-3-3) O* -O uter marker (AIM 5-3-3) U-Unforecasted weather (91.183) S-Safety of flight (91.183) V-Vacating an altitude/FL (AIM 5-3-3) F* -F inal approach fix (AIM 5-3-3) R -R adio/Nav failure (91.187) C* -C ompulsory reporting points (91.183) 500 -unable climb/descent 500 fpm (AIM 5-3-3)

*required only in a non-radar environment (including ATCradar failure)

Position reports itemsAircraft IDPositionTimeAltitude/flight levelType of flight plan (except for communicating withARTCC/approach control)ETAThe name only of the next succeeding reporting point alongthe route of flightAny pertinent remarks

RVR(ft) Visibility(SM)

1,600 1/42,400 1/23,200 5/84,000 3/44,500 7/85,000 16,000 1

IFR takeoff minimums (91.175) No T/O minimums mandated for part 91 operations.Part 121, 125, 129, 135:

Prescribed T/O minimums for specific runway, or, if none:1-2 engines: 1 SM visibilityMore than 2 engines: SM visibility

IFR altitudesDA/H Descent Altitude/ H eight.MAA M aximum Authorized Altitude.

MCA M inimum C rossing Altitude.MDA/H M inimum Descent A ltitude/ H eight.MEA M inimum E n route Altitude. Assuresnavigation coverage and 1000 (non -mountainousterrain) or 2000 (mountainous) obstacle clearance. MOCA M inimum O bstruction C learance Altitude.Provides navigation coverage and obstacleclearance within 22 NM of the NAVAID.MORA M inimum O ff-R oute Altitude. (Jeppesencharts). Including grid and route MORA.MRA M inimum R eception Altitude MVA M inimum Vectoring Altitude.OROCA O ff-R oute O bstruction C learanceAltitude (NACO charts). Assures obstacle clearancewithin 4NM of course. 100 0 over non -mountainousterrain; 2000 over mountainous terrain.


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Altitude to fly Route to fly

M.E.A fly the highest among :M M inimum altitude prescribed for IFR E Expected (e.g. expect 5000ft after 10 minutes) A last altitude Assigned by ATC

A.V.E.F select route by the following order: A Assigned route, if none:V Vectored (fly to the fix/route/airway last vectored to) , if none: E last Expected route by ATC, if none:F Filed route

Leaving the clearance limit

Is the clearancelimit a fix from

which an approachbegins?

Start descent and approach as close as possible to the EFC, or ETA (if no EFC given)

At EFC or clearance limit (if no EFC given), proceed to a fix from which an approachbegins and start the approach

When can you descend below MDA/ DA? (91.175)All three conditions must be met:1. The aircraft is continuously in a position from which a descent to a landing on the

intended runway can be made at a normal rate of descent using normal maneuvers.2. The flight visibility (or the enhanced flight visibility, if equipped) is not less than the

visibility prescribed in the standard instrument approach being used.3. At least one of the following visual references for the intended runway is distinctly

visible and identifiable to the pilot: (except for CAT II & III approaches)a. The approach light system, except you may descend below 100 feet above the

touchdown zone only if the red terminating bars or the red side row bars are alsovisible and identifiable.

b. The threshold.c. The threshold markings.d. The threshold lights.e. The runway end identifier lights.f. The visual approach slope indicator.

g. The touchdown zone or its markings.h. The touchdown zone lights.i. The runway or runway markings.

j. The runway lights.

Do not fly a procedure turn when:(91.175, AIM 5-4-9)S.H.A.R.P-T.TS- S traight in approach.H- H olding in lieu of a procedure turn.A- Arc R- R adar vectored to final app course. P- NoP T depicted on chart.T- T imed approach .T- T eardrop course reversal.

Instrument approach types:Precision (lateral + vertical course guidance):

ILS-Instrument Landing SystemMLS-Microwave Landing SystemPAR-Precision Approach Radar

GLS-GNSS Landing SystemTLS- Transponder Landing System Non-precision (lateral course guidance only):

VOR NDBRNAV/GNSS (LNAV minimums)LOCLDA-Localizer-type Directional Aid. Identical toa localizer but is not aligned with the runway.SDF-Simplified Directional Facility. width: 6 or 12. May be either aligned or not with the runway.ASR-Approach Surveillance Radar

APV (AP proach with Vertical guidance). Has glideslope but does not meet ICAO precision app.standards:

RNAV/GNSS (LNAV/VNAV, LPV, baro-VNAVminimums)LDA with a glide slope

When can you descend to next instrument approachsegment?When cleared for the approach and established on a segmentof a published approach or route.AIM 5-4-7)

Approach clearancesContact approach

o Must be specifically requested by the pilot.(It cannot be initiated by ATC)o Requires at least 1SM reported ground visibility and the aircraft to remain clear of clouds.o Available only at airports with approved instrument approach procedures.

Visual approacho Initiated by either ATC or the pilot.o Requires at least 1000 ceiling and 3SM visibi lity. (IFR under VMC)o Pilot must have either the airport or the traffic to follow in sight.

Aircraft approach categoriesCAT 1.3Vso

(Knots)Radius for circling

maneuverA 165 4.5 NM

Visual Descent point (VDP)A defined point on the final approach course of a non-precision straight in approach procedure from

which normal descent from the MDA to the runway touchdown point may begin provided adequate

visual reference is established.

If not equipped to identify the VDP, fly the approach as if no VDP was published.

When a VDP is not published you can use this formula to calculate it:

VDP (in NM from threshold) = HAT/300, or 10% of HAT = seconds to subtract from time to MAP

Standard rate turn angle of bank calculationTAS / 10 + 5

Example: 120 KTAS- 120 KTAS / 10 + 5 = 17 of bank


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Minimum equipment required for flight (91.205) For VFR day flight :A T.O.M.A.T.O F.L.A.M.E.S-A-Altimeter

T - T achometer for each engine.O - O il temp indicator for each engineM - M anifold pressure gauge for each altitude engineA- Airspeed indicator T - T emperature gauge for each liquid cooled engineO - O il Pressure gauge for each engine

F - Fuel quantity gauge for each tank L - L anding gear position lights (if retractable gear)A- Anticolision lights (aircraft certificated after March 11, 1996) M - M agnetic direction indicator E - E LT, if required by 91.207S- Safety belts / shoulder harnesses

For VFR night flight:All VFR day equipment +F.L.A.P.S-F- F uses (spare set)L- L anding light (if for hire)A- A nticolision lightP- P osition lights (navigation lights)S- S ource of power (such as battery)

Operating with inoperative instruments or equipment (91.213)o erative instruments or e ui ment (91.213)

For IFR day : all VFR day equipment + G.R.A.B C.A.R.DFor IFR night : all VFR day + VFR night equipment +G.R.A.B C.A.R.D-G- G enerator/alternator R- R adios (two way and navigational equipmentappropriate for the ground facilities to be used)A- Altimeter(sensitive) adjustable for barometric pressureB- B all (slip-skid indicator)

C- C lock (shows hours minutes and seconds and installedas part of aircraft equipment.)A- A ttitude indicator R- R ate of turn indicator D- D irectional gyro (Heading indicator)

Follow MELsprovisions

Flying is permitted, provided:x Equipment is removed, orx deactivated and placarded inoperative .

x

Pilot/mechanic determines safe to fly

Flying notallowed withouta special flight

permit

Is the inoperative equipment required by : x 91.205 or other regulations for kind of operations?x Airworthiness Directive (AD)?x Equipment list or kind of operations equipment list?x VFR-day certification requirements?

Aircraft has a

MEL?

1000 ft

14,500 ft

18,000 ft

45,000 ft

60,000 ft

130 NM

100 NM

100 NM

40

NM1000 ft

18,000 ft

40NM

1000 ft

12,000 ft25NM

VOR limitations:Cone of confusion.Reverse sensing.(if used incorrectly)Requires line of site to station.

VOR receiver checks : (91.171)Every 30 calendar days.

VOT 4Repair station 4VOR ground checkpoint 4VOR airborne checkpoint 6

Dual VOR cross-check 4Above a prominent groundlandmark on a selected radial at least20 NM from a VOR, flying at areasonably low altitude 6

VOR check signoff : (91.171)D.E.P.S

D- D ateE- E rror P- P laceS- S ignature

VOR:VOR- VHF Omni directional Range108.0 to 117.95 MHz excluding frequencies at the 108.10 -111.95 range with odd tenths.Full scale deflection: 10 Distance off course = 200 ft per dot per NM from VOR station .Distance to station = TAS X minutes for bearing change /degrees of bearing changeTime to station = Seconds for bearing change /degrees of bearing changeStandard service volumes do not apply to published routes.

Standard VOR servicevolumes

Terminal Low High


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NDB :Non- Directional BeaconOperates at the 190-535 kHz range (can receive and point towards commercial radio AMstation at 550 -1650 kHz).Low to medium frequency band.ADF (Automatic Direction Finder) in aircraft points towards the NDB station.Magnetic Bearing = Magnetic Heading + Relative Bearing

NDB service volume classes:

Compass Locator 15NMMedium High (MH) 25NMHigh (H) 50NM (may be less, as published in a NOTAM or the A/FDHigh High (HH) 75NM

LocalizerFrequency range: 108.1 to 111.95 MHz with odd tenths only.Width: Between 3-6 so that the width at the thresholdwould be 700 feet. Usually 5 total width. (2.5 full deflectionto each side, which is 4 times more sensitive than a VOR).Coverage range: 35 to each side of the centerline for the first10NM and 10 up to 18NM from the antenna and up to analtitude of 4500'.

Glide slopeFrequency range: 329.3 to 335 MHz (UHF) (GS isautomatically tuned with localizer frequency).Width: 1.4 degree (full deflection is 0.7 either direction).Range: typically up to 10 NM.Slope: 2.5-3.5.

Errors: False glide slope above normal glide slope.750-1250 feet

250-650 feet

0.70.7

3

10NM

False glide slope

.7

Glide slope

Marker beaconsProvides range information over specific points along the approach. Transmits at 75 MHz.Outer marker: 4-7 miles out. Indicate the position at which the aircraft should intercept the GS at the appropriateinterception altitude 50ft. BLUE . - - - Middle marker: ~3500ft from the runway. Indicates the approximate point where the GS meets the decision height.Usually 200ft above the touchdown zone elevation. AMBER . . - . - Inner marker: between the MM and runway threshold. Indicates the point where the glide slope meets the DH on a CAT IIILS approach. WHITE . . . . Back course marker: Indicates the FAF on selected back course approaches. Not a part of the ILS approach. WHITE . .. ..

Compass locatorLow-power NDB transmitter (at least 25 Watts and 15NM range)installed together with the OM or the MM on some ILSapproaches.

Approach Light System (ALS)Helps the transition between radio-guided flights into a visualapproach. Can help in estimating flight visibility if you know the dimensionsof the specific ALS configuration.

ILS Category Visibility (RVR) DHCAT I 2400' or 1800' 200'CAT II 1200' 100'CAT IIIa >700'


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Types of speedsIndicated airspeed (IAS) indicated on the airspeed indicator Calibrated airspeed (CAS) IAS corrected for instrument & position errors.Equivalent airspeed (EAS) CAS corrected for compressibility error.True airspeed (TAS) Actual speed through the air. EAS corrected for nonstandard temperature and pressureMach number The ratio of TAS to the local speed of sound.Ground speed Actual speed over the ground. TAS corrected for windconditions.

Types of altitudesIndicated altitude Uncorrected altitude indicated on the dial whenset to local pressure setting (QNH).Pressure altitude Altitude above the standard 29.92. Hg plane.(QNE)Density altitude pressure alt. corrected for nonstandard temperature.Used for performance calculations.True altitude Actual altitude above Mean Sea Level (MSL).Absolute altitude Height above airport elevation (QFE).

Area navigation (RNAV)Allows navigation on any desired course and does not require flying to or from any ground facility.Types:o Global Navigation Satellite System (GNSS)

GPS (USA)Galileo (EU)GLONASS (Russia)

o VOR/DME RNAVo DME/DME RNAV (uses two DME signals to find position)o Inertial Reference Unit / System (IRU/ IRS)o Long Range Navigation (LORAN)

Required Navigation Performance (RNP)o A statement of required navigation accuracy at a given airspace and of available aircraft capability.o Aircraft capability + level of service = accesso En route RNP 2.0 (2NM accuracy 95% of the flight time)o Terminal & Departure RNP 1.0 (1NM accuracy 95% of the flight t ime)o Approach RNP 0.3 (0.3NM accuracy 95% of the flight time)RNAV VNAV provides Vertical NAVigation guidance.Published RNAV routes include Q ( FL180 to FL450) and T (1,200 AGL to 18,000 MSL) routes and are designatedRNAV 1 unless charted otherwise.Magnetic Reference Bearing (MRB) - t he published bearing between two waypoints on anRNAV/GPS/GNSS route.

Pitot blockage: The only instrument affected is the airspeed indicator .

Ram air inlet is clogged and drain hole open Airspeed will dropto zero.

Both air inlet and drain hole are clogged The airspeed indicator will act as an altimeter, and will no longer be reliable.

When you suspect a pitot blockage, consider the use of pitot heatto melt ice that may have formed in or on the pitot tube.

Static port blockage: Airspeed indicator Shows correct airspeed as long as you maintain the samealtitude at which the blockage occurred. At higher altitudes airspeed will indicatelower than it should. At lower altitudes higher than it should.Altimeter will freeze on the altitude where it was blocked.VSI freezes on zero.

After verifying a blockage in the static port, you should use an alternate staticsource or break the VSI window (in that case, expect reverse VSI information).

When using the alternate static source (a lower static pressure is measured):Airspeed indicator indicate faster than it should.Altimeter indicate higher than it should.VSI momentarily show a climb.

Rate of decent for a 3 glide slope :ground speed X 5 = vs to maintain;Or, 10 X ground speed / 2 = VS Example: 120 KT X 5 = 600 fpm or,10 X 120 KT / 2 = 600 fpm

How far out to start a descent? (3 glide)Altitude to lose / 300 Example: 6000 to lose, start descent 20 NM out.(6000/300 = 20 NM )

Convert climb gradient from ft/NM to fpm ft/nm requirement X NM per Minute Ex.: DP requires 300 ft/NM climb.Your ground speed is 120KT, which is 2NM perminute (120 KT / 60 min = 2 NM per min).300 x 2 = 600 fpm

Global Positioning System (GPS)GPS is a Global Navigation Satellite System (GNSS) operated by the United States.The constellation consists of a minimum of 24 satellites (with some spares) orbiting above the earth at 10,900 NM. The system is designed so that at least 5satellites are in view at any given location on earth.The time lapse between the transmission broadcast (as obtained from the atomic clocks on the satellite) to the time it was received by the aircraft receiver, is

translated into distance (pseudo-range). Using one satellite, the aircraft could virtually be on any point on a sphere surrounding the satellite, with thecalculated pseudo- range as the spheres radius.The GP S receiver uses the intersection of spheres, from multiple satellites, to calculate the aircrafts geographical position. Co urse and speed data arecomputed from aircraft position changes.Airborne GPS units use great-circle courses for navigation.GPS CDI deflection shows distance off course in miles, unlike a VOR CDI, which reflects an angular distance off course in degrees.At least 3 satellites are required for 2d position. (latitude and longitude)At least 4 satellites are required for 3d position. (latitude, longitude and altitude)Receiver Autonomous Integrity Monitoring (RAIM) is a function of GPS receivers that monitors the integrity of the satellite signals.o RAIM (fault detection) requires a minimum of 5 satellites, or alternatively, 4 satellites + an altimeter input (baro-aided RAIM)o To eliminate a corrupt satellite (fault exclusion), RAIM needs an additional satellite (total of 6 or 5 + baro-aid)A database loaded into the receiver unit contains navigational data such as: airports, navaids, routes, waypoints and instrument procedures.An IFR-certified GPS may be used to substitute an ADF or DME but not for NDB approaches without a GPS overlay ( without a or GPS in title). Check GPS NOTAMS before the flight and use RAIM prediction if available on your receiver.Differential GPS (DGPS) Improves the accuracy of GPS by measuring errors received by reference stations at known geographical locations and then

broadcasting those errors to supported GPS receivers.o Wide Area Augmentation System (WAAS) Errors are broadcasted back to a satellite and from there to aircraft equipped with GPS WAAS receivers.

Covers a wide area. Allows for APV approaches such as LPV and LNAV/VNAV.o Local Area Augmentation System (LAAS) Errors are broadcasted via VHF to LAAS-enabled GPS receivers. More accurate than WAAS but covers a

much smaller geographical area. Allows for category I and above approaches if equipped.


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Magnetic compass errors &limitations:D.V.M.O.N.AD- D eviationV- V ariationM- M agnetic dipO- O scillationN- N orth/south turn errors(Northern hemisphere: UNOS Undershoot North/ O vershoot South)A- A cceleration errors(Northern hemisphere: ANDSAccelerate North/ Decelerate South)

D

3152 *

C

3152 *

B

3SM visibility & stay clear

of cloudsG below 1200 AGL Day: 1SM clear of cloudsNight: 3152 * or 1SM clear of clouds if in a trafficpattern within SM from the runway.

Class G above 1200 AGLbut below 10,000 MSL Day: 1152 *.Night: 3152 *

Class E below 10, 000 MSL 3152 *

Class A IFR onlyClass E above 10,000 MSL and class G above 10,000MSLand 1,200 AGL 5111 *

10,000 MSL

1,200 AGL

Basic VFR weather minimums (91.155)*Min visibility & distance from clouds:3152 3SM, 1000 above, 500 below, 2000 horizontal. 1152 1SM, 1000 above, 500 below, 2000 horizontal. 5111 5SM, 1000 above, 1000 below, 1SM horizontal.

Gyroscopic instrumentsTwo principles of a gyroscope: Rigidity in space and precession .

Attitude indicator operates on the principle of rigidity in space. Shows bank and pitch information. Older AIs may have atumble limit. Should show correct attitude within 5 minutes of turning on the engine. Normally vacuum-driven in GAaircraft, may be electrical in others. May have small acceleration/deceleration errors (accelerate-slight pitch up, decelerate-

pitch down) and roll-out errors (following a 180 turn shows a slight turn to the opposite direction).Heading indicator operates on the principle of rigidity in space. It only reflects changes in heading, but cannot measure the

heading directly. You have to calibrate it with a magnetic compass in order for it to indicate correctly. Some HIs are slaved toa magnetic heading source, such as a flux gate, and sync automatically to the correct heading. Normally powered by thevacuum system in on GA aircraft.Turn indicators operates on the principle of precision.o Turn coordinators show rate-of-turn and rate of roll.o Turn-and-slip indicators show rate-of-turn only.

Electronic flight instrumentsAttitude Heading Reference Systems (AHRS) Provides more accurate and reliable attitude and heading data than traditionalseparate gyro systems. The first AHRS units were very expensive and relied on laser gyros and flux valves. Today they are

based on solid state technologies (no moving parts) and are cheaper, smaller and easier to maintain.Air Data Computers (ADC) replaces the mechanical pitot-static instruments. The ADC receives inputs from the pitot, staticand outside temperature ports and computes airspeed, true airspeed, vertical speed and altitude.Flight director computes and displays command bars over the attitude indicator to assist the pilot in flying selected heading,course or vertical speed.Flight Management System (FMS) Receives inputs from various sensors and provides guidance to the autopilot and flightdirector throughout the flight. The FMS also automatically monitors and selects the most appropriate navigation source for accurate positioning. (GPS, VOR/DME, INS etc.)Electronic Flight Instrument Systems (EFIS) AKA Glass cockpit . Primary Flight Displays (PFD) Displays flight data such as attitude, altitude, airspeed, VSI and heading as well as ratetapes.Multi-Function Displays (MFD) Displays a variety of information such as moving maps, aircraft system status, weather andtraffic. It may also be used as a backup for other displays, such as the PFD or EICAS.

Generic instrument taxi cockpit check *You should tailor it to your aircraft & operations Airspeed 0 KIAS.Turn coordinator ball centered and wings level when not turning. On turns: shows turn in correct direction,

ball goes to opposite direction of the turn.Attitude Correct pitch attitude and bank angle 5 within 5 minutes.Heading indicator Set and shows correct headings.Altimeter Set to local altimeter settings or field elevation. Shows correct field elevation 75 feet.VSI 0 fpm.Magnetic compass swings freely, full of fluid, shows known headings and deviation card is installed.Marker beacons Tested.

NAV & Comm Set.GPS Checked and set.EFIS cockpits Check PFD/MFD/EICAS for Xs , messages and removed symbols.


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.comEn route weather information sources

En route Flight Advisory Service (EFAS) 122.0 MHz at 5,000- 17,500 MSL. Other frequencies are available above 18,000. EFAS is called flight watch over the radio. Transcribed Weather Broadcast (TWEB) Available in Alaska only. A recorded broadcast over selected L/MF and VOR facilities of weather information for the local area. Hazardous Inflight Weather Advisory Service (HIWAS) Hazardous and urgent weather information broadcasted over select VOR stations. Contains asummary of any AIRMETs, SIGMETs, convective SIGMETs and Center Weather Advisories (CWA) and urgent PIREPs. DATALINK Displays textual and graphical weather information obtained via ground stations (such as FISDL) or satellites. You should pay attention tocoverage gaps and the age of the information.

Automatic Terminal Information Service (ATIS) Automated Surface Observation System (ASOS) Automated Weather Observation System (AWOS) ATC - Center weather advisories are issued by ARTCC to alert pilots of existing or anticipated adverse weather conditions. ARTCC will also broadcast severeforecast alerts (AWW), convective SIGMETs and SIGMETs on all of its frequencies except for the emergency frequency (121.5 MHz). Onboard weather radar Onboard lightning detector

Convective SIGMET (WST) - An inflight advisory of convective weather significant to all aircraft. Issued hourly at 55 minutes past the hour. Valid for 2hours. Contains either an observation and a forecast or only a forecast. Convective SIGMETs are issued for any of the following:o Severe thunderstorms due to:

i. Surface winds greater or equal to 50 knotsii. Hail at the surface greater than 3/4 inch in diameter

o Tornadoeso Embedded thunderstormso A line of thunderstorms at least 60 miles long affecting 40% of its lengtho Thunderstorms producing heavy or greater precipitation affecting more than 40% of an area of at least 3000 square miles.o Convective SIGMETs always implies severe or greater turbulence, severe icing, or low level wind shear.SIGMET (WS) A non-scheduled inflight advisory with a maximum forecast period of 4 hours. Advises of non-convective weather potentially hazardous toall types of aircraft. A SIGMET is issued when the following is expected to occur:o Severe icing not associated with thunderstormso Severe or extreme turbulence or Clear Air Turbulence (CAT) not associated with thunderstorms.o Dust storms, sandstorms lowering surface visibility below 3 miles.o Volcanic ashAIRMET (WA) - An advisory of significant weather phenomena at lower intensities than those which require the issuance of SIGMETs. Theseweather conditions can affect all aircraft but are potentially hazardous to aircraft with limited capability. Valid for 6 hours. o AIRMET (T) - describes moderate turbulence, sustained surface winds of 30 knots or greater, and/or non-convective low-level wind shear. o AIRMET (Z) - describes moderate icing and provides freezing level heights. o AIRMET (S) - describes IFR conditions and/or extensive mountain obscurations. o Graphical AIRMETs (AIRMET G) found at http:// aviationweather.gov PIREP (UA) & Urgent PIREP (UUA) pilot weather reports.

METAR Aviation routine weather show surface weather observations in a standard international format. Scheduled METARs are published every hour. Non-scheduled METARS (SPECI) are issued when there is a significant change in one or more reported element since the last scheduled METAR.TAF Terminal Aerodrome Forecast. Weather forecast for 5SM radius area around the station. Issued 4 times a day, every six hours and normally cover a 24or 30 hour forecast period. TAF amendments (TAF AMD) supersede the previous TAF.Aviation Area Forecast (FA) - A forecast of weather condition over an area of several states. When there isn't a TAF available for your route, check the FAstogether with SIGMETs, AIRMETs and other information. Area forecasts are issued 3 times a day (or 4 times for the Caribbean, Alaska and Hawaii regions).Surface analysis chart Generated from surface station reports. Shows pressure systems, isobars, fronts, airmass boundaries (such as: drylines and outflow

boundaries) and station information (such as: wind, temperature/dew point, sky coverage, and precipitation). Issued every 3 hours. (Hawaii, tropical and Oceanicregions every 6 hours)Weather depiction chart - Just like the surfa ce analysis chart, it is generated from surface station observations. Depicts areas of VFR (at least 3000 ceiling and5SM visibility), Marginal VFR (1000 -3000 ceiling and/or 3 -5SM visibility, shown as contoured areas) and IFR (less than 1000 ceiling an d/or 3SM visibility,shown as shaded areas). It also shows basic METAR information at selected stations (visibility, sky coverage, ceilings and obstructions to visibility). Issuedevery 3 hours, starting at 01:00Z.Radar summary chart (SD) Depicts precipitation type, intensity, coverage, movement, echoes, and maximum tops. Issued hourlyWind & temp aloft forecasts (FB) Issued 4 times daily for different altitudes and flight levels. Winds within 1500 AGL and temperatures within 2500 AGLare not shown. Format: DDfftt where DD=wind direction; ff=wind speed tt=temperature. Light and variable winds: 9900. Winds between 100-199 Kt arecoded by adding 5 to the first digit of the wind direction. Examples:1312+05 = winds 130 at 12 kt temperature =5 C. 7525-02 = winds 250 at 122 kttemperature -02 C. Above FL240 temperatures are negative and the minus sign (-) is omitted.Low level significant weather chart Forecasts significant weather conditions for a 12 and 24 hour period from the surface to 400 mb level (24,000 ft). Issued4 times a day. Depicts weather categories (IFR, MVFR and VFR), turbulence and freezing levels.Mid-level significant weather chart Depict forecasts of significant weather at various altitudes and flight levels from 10,000 MSL.to FL4 50. Shows:thunderstorms, jet streams, tropopause height, tropical cyclones, moderate and severe icing conditions, moderate or severe turbulence, cloud coverage and type,volcanic ash and areas of released radioactive materials. Issued 4 times a day for the North Atlantic Region.High-level significant weather charts Depicts forecasts of significant weather phenomena for FL250 to FL630. Shows: coverage bases and tops of thunderstorms and CB clouds, moderate and severe turbulence, jet streams, tropopause heights, tropical cyclones, severe squall lines, volcanic eruption sites,widespread sand and dust storms. Issued 4 times a day.Convective outlook (AC) Available in both graphical and textual format. A 3-day forecast of convective activity. Convective areas are classified as slight(SLGT), moderate (MDT), and high (HIGH) risk for severe thunderstorms. Issuance: day 1 5 times a day, day 2 twice a day, day 3 once a day.


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Conditions necessary for the formation of thunderstorms1. Sufficient water vapor (humidity)2. An unstable temperature lapse rate3. An initial uplifting force (such as: front passage, mountains, heating from below, etc.)

Thunderstorm hazards - Limited visibility, wind shear, strong updrafts and downdrafts, icing, hailstones, heavy rain, severe turbulence, lightning strikes andtornadoes. Life cycle of a thunderstorm

Cumulus stage (3-5 mile height) lifting action of the air begins. Growth rate may exceed 3000 fpm.Mature stage (5-10 miles height) begins when precipitation has become to fall from the cloud base. Updraft at this stage may exceed 6000 fpm. Downdraftsmay exceed 2500 fpm. All thunderstorm hazards are at their greatest intensity at the mature stage.Dissipating stage (5-7 miles height) characterized by strong downdrafts and the cell is dying rapidly.

Fog A cloud that begins within 50 ft of the surface. Occurs when the air temperature near the ground reaches its dew point, or when the dew point is raised to theexisting temperature by added moisture to the air.

Radiation fog Occurs at calm clear nights when the ground cools rapidly due to the release of ground radiation.Advection fog warm, moist air moves over a cold surface. Winds are required for advection fog to form.Ice fog Forms when the temperature is much below freezing and water vapor turns directly into ice crystals. Common in the arctic regions but also occurs inmid-latitudes.Upslope fog moist, stable air is forced up a terrain slope and cooled down to its dew point by adiabatic cooling.Steam fog Cold, dry air moves over warm water. Moisture is added to the airmass and steam fog forms.

Icing (AC 91-74, AC 00-6A)Structural ice Two conditions for formation: 1.Visible moisture (clouds, fog, precipitation) 2. Aircraft surface temperature below freezing.o Clear ice most dangerous type. Heavy, hard and difficult to remove. Forms when water drops freeze slowly as a smooth sheet of solid ice. Usually occurs at

temperatures close to the freezing point (-10 to 0 C) by large supercooled drops of water o Rime ice Opaque, white, rough ice formed by small supercooled water drops freezing quickly. Occurs at lower temperatures then clear ice does.o Mixed ice Clear and rime ice formed simultaneously.Instrument ice structural ice forming over aircraft instruments and sensors, such as pitot and static.

Induction ice ice reducing the amount of air for the engine intake.o Intake ice Blocks the engine intake.o Carburetor ice May form due to the steep temperature drop in the carburetor venturi. Typical conditions are outside air temperatures of -7 to 21 C and a

high relative humidity (above 80%).Frost Ice crystals caused by sublimation when both the temperature and the dew point are below freezing.

Hypoxia insufficient supply of oxygen to the body cells.Hypoxic hypoxia insufficient supply of O2 to the body as a whole. As altitude increases, O2 percentage of the atmosphere is constant, but its pressuredecreases. The reduced pressure becomes insufficient for the O2 molecules to pass through the respiratory systems membran es.Hypemic hypoxia Inability of the blood to carry the O2 molecules. It may be a result of insufficient blood (bleeding or blood donation), anemia, or CO

poisoning.Histotoxic hypoxia Inability of the body cells to affectively use the O2 supplied by the blood. This can be caused by use of alcohol or drugs.Stagnant hypoxia - Caused by the blood not flowing to a body tissue. Can be caused by heart problems, excessive acceleration (Gs), shock or a constricted bloodvessel.

Oxygen requirements (91.211)Note: O2 requirements below are for operations under part 91. Part 121 and 135 requirements are different.

Cabin pressure altitudes 12,500-14,000ft - crew must use supplemental O2 for periods of flight over 30 minutes at these altitudes.Cabin pressure altitudes above 14,000ft crew must be provided with and use supplemental O2 the entire flight time at these altitudes.Cabin pressure altitudes above 15,000ft each occupant must be provided with supplemental O2.Pressurized cabinso Above FL250 - an addition of at least 10 minutes of supplemental O2 for each occupant is required.o Above FL350 - one pilot at the controls must wear and use an O2 mask unless two pilots are at the control with quick-donning masks and the aircraft is at or

below FL410.o If one pilot leaves the controls above FL350, the other pilot must wear and use his O2 mask regardless if its a quick donning type.

Hyperventilation A condition which occurs when excessive amount of is eliminated from the body as a result breathing too rapidly. Symptoms may be similar to those of hypoxia. Breathing into a paper bag or talking aloud helps recovery from hyperventilation.Decompression sickness Inert gasses (mainly nitrogen) are released rapidly from solution in the body tissues and fluids as a result of low barometric pressure.The gasses form bubbles that may harm the body in several ways. The most common result of decompression sickness is joint pai n (the bends) but it can damageother important tissues, including the brain. Decompression sickness is more likely after scuba diving, where the body is subject to higher pressures. Wait at least12 hours after scuba diving if your flight is up to 8000ft cabin altitude, or 24 hours for higher cabin altitudes.

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